# UV Index & SPF: Burnline — Burn timer, UV & vitamin D

> Burn timer, UV & vitamin D (iPhone/iPad app by Andrej Sazdovski.)

- Source: https://appshunter.io/ios/app/uv-index-and-spf-burnline/id6806635010 (this page in markdown: same URL + `.md`)
- Developer: [Andrej Sazdovski](https://appshunter.io/developer/1873403159)
- Category: Weather, Health & Fitness
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 44 MB
- Languages: American English
- Released: 2026-09-23
- Data updated: 2026-09-27

## What is UV Index & SPF?

Know exactly how long you can stay out before you burn.

Burnline turns the UV index into the only number that matters: minutes. Your
skin type, today's UV, the SPF you actually put on — one countdown, updated as
the sun moves.

TODAY'S BURN LINE
See your time to burn right now, and the hour it gets dangerous. The full day
curve shows when to go out and when to find shade.

BUILT FOR YOUR SKIN, NOT AN AVERAGE
Fitzpatrick skin type, not a generic timer. And because almost nobody applies
sunscreen at the lab rate, Burnline models what SPF 30 really gives you rather
than what the bottle claims.

WORKS WITH NO SIGNAL
The day's UV curve is computed on your phone from the sun's position. On a
beach, abroad, with no roaming — it still works.

YOUR SEASON, RECORDED
Every day you got it right. Burn-free days, time outside, and the record that
builds over a summer.

VITAMIN D, THE OTHER SIDE
In winter the question flips: how long do you need OUT to make any vitamin D at
all. Burnline answers that too.

SUBSCRIPTION
Burnline is a subscription app. Today's burn line is free; the full day curve,
the season record and vitamin D mode require Burnline Pro, offered as a monthly
or annual subscription with the price shown before you buy. Payment is charged
to your Apple ID at confirmation. Subscriptions renew automatically unless
cancelled at least 24 hours before the period ends. Manage or cancel in your
Apple ID settings.

Burnline gives estimates based on published UV and dermatology research. It is
not medical advice and does not diagnose or treat any condition. If you have a
skin condition or take photosensitising medication, talk to a doctor.

Privacy: https://burnline-web.vercel.app/privacy
Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Support: https://burnline-web.vercel.app/support

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Burnline Pro — Yearly | $34.99 | per year |
| Burnline Pro — Monthly | $6.99 | per month |


## Is UV Index & SPF safe?

Not enough ratings yet to assess UV Index & SPF.

## Is UV Index & SPF legit?

UV Index & SPF: Burnline appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for UV Index & SPF is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-09-23

No release notes.

## More apps by Andrej Sazdovski

- [OctaCoach: Boxing Round Timer](https://appshunter.io/ios/app/octacoach-boxing-round-timer/id6758529104)
- [DecisionLoop](https://appshunter.io/ios/app/decisionloop/id6759516422)
- [FrameBox - Photo Framer](https://appshunter.io/ios/app/framebox-photo-framer/id6761389249)
- [FocusMind - Pomodoro Timer](https://appshunter.io/ios/app/focusmind-pomodoro-timer/id6763880575)
- [Feedrate: CNC Speeds & Feeds](https://appshunter.io/ios/app/feedrate-cnc-speeds-and-feeds/id6803240997)
- [Split Planner for HYROX](https://appshunter.io/ios/app/split-planner-for-hyrox/id6806634717)

All apps by Andrej Sazdovski: https://appshunter.io/developer/1873403159

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-27.*